What is the primary backup energy source for residential fire alarm systems?

• A. The building occupant
• B. The alarm company
• C. The system owner
• D. The fire department

Answer: (C)

In residential fire alarm systems, operation during a power outage depends on a backup energy source, such as a battery, that keeps the system running when main power fails. The party responsible for providing and maintaining that backup power is the system owner. They own the system and must ensure the backup energy source is installed, charged, and replaced as needed so the alarm remains functional during outages. The occupant may use the system, and the alarm company can install and service it, but the responsibility for the backup energy lies with the system owner. The fire department does not supply or maintain backup power.